Sienna Miller and Fiancé Oli Green Step Out in Soho

Sienna Miller and her fiancé Oli Green were spotted enjoying a low-key outing in Soho on Friday. Miller, 44, sported a navy jumper, midi skirt, and knee-high boots from Dune London, accessorized with sunglasses and a brown handbag. Green, 29, wore a khaki jacket.

The couple, who welcomed their second child in April and became engaged two months later, took time out from parenting duties for the outing. They also welcomed a child in January 2024. Miller is also mother to 14-year-old Marlowe from her previous relationship with actor Tom Sturridge.

Miller recently shared that she was pregnant throughout the filming of the divorce drama "War," starring opposite Dominic West. She was 35 weeks pregnant by the end of shooting the series, which follows the story of a divorce. Miller plays Carla Duval, while West portrays her ex-husband, Morgan Henderson, in the legal drama.

She described the filming as challenging due to her pregnancy, with long days that often meant leaving and returning home in darkness. Phoebe Fox, who also starred in "War," was pregnant during the shooting and her condition was written into the plot. Miller quipped to The Observer about Fox's pregnancy being incorporated, "She got in first. We sat together scoffing Freddos in between shots."

Earlier in October, Miller remarked on the challenges of her post-pregnancy appearance, stating she felt like a "lactating heifer" and struggled to dress her "massive boobs" after being pregnant or breastfeeding for nearly four years. In a candid interview, she admitted to feeling so tired that she questioned her own identity while juggling work and her children. "I have completely lost my fashion sense," she said. "I've been pregnant or breastfeeding for nearly four years, and I think something happens to the brain – or you're so f***ing tired – that you sacrifice your identity."

She continued, "You're just 'mother'... and not in the Gen-Z way, as much as I would like to be." Miller added, "I'm just really questioning all this, because I'm just so underslept and I kind of don't know who I am. I also have massive boobs, which I don't know how to dress. Anyway, this is far too much information…."

Speaking to Vogue, Miller also shared that she had been up breastfeeding since early morning on the day of her interview, adding, "I just feel like a kind of lactating heifer." She also mentioned seeking fashion advice from model Alexa Chung, who is Sturridge's current partner, including for the premiere of "Oasis: Don't Look Back In Anger."